State of Reliability Report Preview of Key Findings Mark Lauby, - PowerPoint PPT Presentation

State of Reliability Report Preview of Key Findings Mark Lauby, Senior Vice President and Chief Reliability Officer

Summary of Key Findings • Excluding weather, the bulk-power system (BPS) remains within Adequate Level of Reliability (ALR) objectives  Weather continues to stress BPS reliability • No load loss due to cyber or physical security events • Average transmission outage severity declined • Significant decrease in transmission forced outages resulting in loss of load • Stable frequency response trend • Increased risk in protection system misoperations • Continued decline in Energy Emergency Alert Level 3 2 RELIABILITY | ACCOUNTABILITY

Weather Stresses BPS Reliability 3 RELIABILITY | ACCOUNTABILITY

Continued Decline in Average Transmission Outage Severity 0.2 Failed AC Substation 0.19 Equipment Power System 0.18 Condition 0.17 Expected Transmission Outage Severity Failed AC Circuit 0.16 Misoperation Equipment 0.15 Lightning 0.14 Weather, Excluding 0.13 Lightning 0.12 0.11 0.1 -0.1 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 0.1 Correlation with Transmission Outage Severity 4 RELIABILITY | ACCOUNTABILITY

Significant Decrease in Forced Transmission Outages Resulting in Loss of Load 5 RELIABILITY | ACCOUNTABILITY

Frequency Response Trend Stable Eastern Interconnection Western Interconnection ERCOT Interconnection Québec Interconnection 6 RELIABILITY | ACCOUNTABILITY

No Load Loss Due To Physical or Cyber Security Events • BES Security Metric 1: Reportable Cyber Security Incidents  3 Reportable Cyber Security Incidents in 2014  None resulted in loss of load • BES Security Metric 2: Reportable Physical Security Events  47 reports of physical security threat events  9 caused physical damage or destruction  None resulted in loss of load 7 RELIABILITY | ACCOUNTABILITY

Use of EEA Level 3 Continues to Decline 45 EEA3 Events NERC-Wide 40 Steady decline NERC-wide 35 Number of EEA3 Events 30 since 2011 25 20 15 10 5 0 2006 2007 2008 2009 2010 2011 2012 2013 2014 40 EEA3 Events by Region Year 35 Number of EEA3 Events 30 25 20 Overall regional rate 15 10 declining 5 0 2006 2007 2008 2009 2010 2011 2012 2013 2014 FRCC MRO NPCC RF SERC SPP TRE WECC 8 RELIABILITY | ACCOUNTABILITY

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